Interaction of photoswitchable nanoparticles with cellulosic materials for anticounterfeiting and authentication security documents

Abdollahi, Amin; Herizchi, Ata; Roghani‐Mamaqani, Hossein; Alidaei-Sharif, Hossein

doi:10.1016/j.carbpol.2019.115603

Cited by 57 publications

(53 citation statements)

References 64 publications

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“…Counterfeiting and copy of security documents, such as money, passport, banknotes, diplomas, and certificates, has frequently been reported, which is a significant global challenge and induces multibillion dollar expenses to companies, governments, and customers. − Facile accessibility of anticounterfeiting inks and their general authentication technology for the forgers are the main concerns in this field. A search on “anticounterfeiting” keyword in the title of published literature within the last two decades displayed a significant increase, especially between 2018 and 2019, as shown in Figure .…”

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confidence: 99%

Photoluminescent and Chromic Nanomaterials for Anticounterfeiting Technologies: Recent Advances and Future Challenges

et al. 2020

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Counterfeiting and inverse engineering of security and confidential documents, such as banknotes, passports, national cards, certificates, and valuable products, has significantly been increased, which is a major challenge for governments, companies, and customers. From recent global reports published in 2017, the counterfeiting market was evaluated to be $107.26 billion in 2016 and forecasted to reach $206.57 billion by 2021 at a compound annual growth rate of 14.0%. Development of anticounterfeiting and authentication technologies with multilevel securities is a powerful solution to overcome this challenge. Stimuli-chromic (photochromic, hydrochromic, and thermochromic) and photoluminescent (fluorescent and phosphorescent) compounds are the most significant and applicable materials for development of complex anticounterfeiting inks with a high-security level and fast authentication. Highly efficient anticounterfeiting and authentication technologies have been developed to reach high security and efficiency. Applicable materials for anticounterfeiting applications are generally based on photochromic and photoluminescent compounds, for which hydrochromic and thermochromic materials have extensively been used in recent decades. A wide range of materials, such as organic and inorganic metal complexes, polymer nanoparticles, quantum dots, polymer dots, carbon dots, upconverting nanoparticles, and supramolecular structures, could display all of these phenomena depending on their physical and chemical characteristics. The polymeric anticounterfeiting inks have recently received significant attention because of their high stability for printing on confidential documents. In addition, the printing technologies including hand-writing, stamping, inkjet printing, screen printing, and anticounterfeiting labels are discussed for introduction of the most efficient methods for application of different anticounterfeiting inks. This review would help scientists to design and develop the most applicable encryption, authentication, and anticounterfeiting technologies with high security, fast detection, and potential applications in security marking and information encryption on various substrates.

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confidence: 99%

Photoluminescent and Chromic Nanomaterials for Anticounterfeiting Technologies: Recent Advances and Future Challenges

et al. 2020

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“…The chemical compositions of the achieved CDs were measured by Fourier transform infrared spectra (FTIR) together with X-ray photoelectron spectra (XPS) analysis. As exhibited in Figure , the characteristic absorption peak at 3293 cm –1 is from O–H/N–H, 1631 cm –1 is for the stretching vibration band of CO, and 1080 and 874 cm –1 come from the stretching vibration band of C–O, which all indicate that the surface of CDs has been partially oxidized. , Furthermore, the obvious peak at 1540 cm –1 can be associated with N–H bands of vibration and deformation, which manifested that there are some amino-related groups on the CDs. Moreover, the absorption peaks at 1249 cm –1 can be ascribed to the symmetrical stretching vibration band of C–C, and the anti-symmetrical stretching vibration band of C–C is seated at 1029 cm ‑1 . , Additionally, the peaks at 2940 and 1405 cm –1 are assigned to the stretching vibrations C–H and CC, which further suggests the production of alkyl and aryl groups on their surface …”

Section: Resultsmentioning

confidence: 90%

“…As exhibited in Figure 3, the characteristic absorption peak at 3293 cm −1 is from O−H/N−H, 1631 cm −1 is for the stretching vibration band of CO, and 1080 and 874 cm −1 come from the stretching vibration band of C−O, which all indicate that the surface of CDs has been partially oxidized. 27,28 Furthermore, the obvious peak at 1540 cm −1 can be associated with N−H bands of vibration and deformation, which manifested that there are some aminorelated groups on the CDs. Moreover, the absorption peaks at 1249 cm −1 can be ascribed to the symmetrical stretching vibration band of C−C, and the anti-symmetrical stretching vibration band of C−C is seated at 1029 cm -1 .…”

Section: Resultsmentioning

confidence: 98%

Rapid and Green Fabrication of Carbon Dots for Cellular Imaging and Anti-Counterfeiting Applications

Sun

et al. 2021

ACS Omega

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Carbon dots (CDs) with plenty of favorable properties have been extensively investigated in diverse areas including bioimaging, biomedicine, sensor, energy storage, anti-counterfeiting, photocatalysis, and optoelectronic devices. Herein, a simple, rapid, and green sonochemical-assisted method for fabricating nitrogen-doped CDs has been developed. In this approach, the nitrogen-doped CDs can be obtained through irradiation by intensive ultrasonic waves from ultrasonic probes in 30 min. The achieved CDs exhibit excellent water dispersibility, which can be ascribed to their high functionalization. Importantly, the CDs also demonstrate remarkable fluorescent properties, high photostability, and low cytotoxicity, which can be utilized for multicolor cellular imaging and anti-counterfeiting applications. As far as we know, the sonochemical-assisted method for rapidly synthesizing nitrogendoped CDs from gelatin has never been reported before. Significantly, the sonochemical-assisted approach to rapidly fabricate CDs is versatile for the facile construction of fluorescent CDs, and the obtained CDs can be potentially used in various areas including bioimaging and anti-counterfeiting.

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“…Anticounterfeiting technology has attached remarkable attentions in the preparation of smart inks, papers, fibers, labels, holograms, etc . 63 – 70 . Due to the important role of anticounterfeiting security papers in the recent studies, development of the anticounterfeiting ionochromic papers based on oxazolidine derivatives can help the documents to stay safe from any forgery and counterfeiting.…”

Section: Resultsmentioning

confidence: 99%

Development of highly sensitive metal-ion chemosensor and key-lock anticounterfeiting technology based on oxazolidine

Razavi

Roghani‐Mamaqani

Salami‐Kalajahi

2022

Sci Rep

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Optical chemosensors and ionochromic cellulosic papers based on oxazolidine chromophores were developed for selective photosensing of metal ions and information encryption as security tags, respectively. The oxazolidine molecules have been displayed highly intense fluorescent emission and coloration characteristics that are usable in sensing and anticounterfeiting applications. Obtained results indicated that oxazolidine molecules can be used for selective detection of pb2+ (0.01 M), and photosensing of Fe3+, Co2+ and Ag+ metal ion solutions by colorimetric and fluorometric mechanisms with higher intensity and sensitivity. Also, oxazolidine derivatives were coated on cellulosic papers via layer-by-layer method to prepare ionochromic papers. Prepared ionochromic papers were used for printing and handwriting of optical security tags by using of metal ion solutions as a new class of anticounterfeiting inks with dual-mode fluorometric and colorimetric securities. The ionochromic cellulosic papers can be used for photodetection of metal ions in a fast and facile manner that presence of metal ions is detectable by naked eyes. Also, key-lock anticounterfeiting technology based on ionochromic papers and metal ion solution as ink is the most significant strategy for encryption of information to optical tags with higher security.

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Interaction of photoswitchable nanoparticles with cellulosic materials for anticounterfeiting and authentication security documents

Cited by 57 publications

References 64 publications

Photoluminescent and Chromic Nanomaterials for Anticounterfeiting Technologies: Recent Advances and Future Challenges

Photoluminescent and Chromic Nanomaterials for Anticounterfeiting Technologies: Recent Advances and Future Challenges

Rapid and Green Fabrication of Carbon Dots for Cellular Imaging and Anti-Counterfeiting Applications

Development of highly sensitive metal-ion chemosensor and key-lock anticounterfeiting technology based on oxazolidine

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